[mirror_ubuntu-bionic-kernel.git] / arch / x86 / ras / Kconfig

config MCE_AMD_INJ
	tristate "Simple MCE injection interface for AMD processors"
	depends on RAS && X86_MCE && DEBUG_FS && AMD_NB
	default n
	help
	  This is a simple debugfs interface to inject MCEs and test different
	  aspects of the MCE handling code.

	  WARNING: Do not even assume this interface is staying stable!

config RAS_CEC
	bool "Correctable Errors Collector"
	depends on X86_MCE && MEMORY_FAILURE && DEBUG_FS
	---help---
	  This is a small cache which collects correctable memory errors per 4K
	  page PFN and counts their repeated occurrence. Once the counter for a
	  PFN overflows, we try to soft-offline that page as we take it to mean
	  that it has reached a relatively high error count and would probably
	  be best if we don't use it anymore.

	  Bear in mind that this is absolutely useless if your platform doesn't
	  have ECC DIMMs and doesn't have DRAM ECC checking enabled in the BIOS.
Commit	Line	Data
69385f88	1	config MCE_AMD_INJ
6c36dfe9	2	tristate "Simple MCE injection interface for AMD processors"
bd43f60a	3	depends on RAS && X86_MCE && DEBUG_FS && AMD_NB
6c36dfe9 BP	4	default n
	5	help
	6	This is a simple debugfs interface to inject MCEs and test different
	7	aspects of the MCE handling code.
	8
	9	WARNING: Do not even assume this interface is staying stable!
011d8261 BP	10
	11	config RAS_CEC
	12	bool "Correctable Errors Collector"
	13	depends on X86_MCE && MEMORY_FAILURE && DEBUG_FS
	14	---help---
	15	This is a small cache which collects correctable memory errors per 4K
	16	page PFN and counts their repeated occurrence. Once the counter for a
	17	PFN overflows, we try to soft-offline that page as we take it to mean
	18	that it has reached a relatively high error count and would probably
	19	be best if we don't use it anymore.
	20
	21	Bear in mind that this is absolutely useless if your platform doesn't
	22	have ECC DIMMs and doesn't have DRAM ECC checking enabled in the BIOS.
	23